

If no proxy is required, installing notepad++ in all users mode, like at the link from above, will solve this. Important note: you will have to run notepad++ as administrator (elevated) to be able to save this setting. If your company requires a proxy server for the default accounts, you will have to set it at ? > set updater proxy.

I`m only able to install plugins when i start Notepadd++ as Admin. I also figured out that when i try to install a plugin as a normal User a UAC promt elevate, but if i enter my admin-User credentials it would not install the plugin (It dont get any error message). Please adapt anything to your needs, and feel free to ask any questions, if you need help on your specific deployment scenario. It also contains a silent deployment script, adapted for the requesting admin’s infrastructure. Welcome to the notepad++ community, see this thread, install notepad++ plugin without admin rights, which might be very similar to your corporate environment.
